Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://ttraff.me/123?keyword=can+you+see+shooting+stars+during+the+day In PDF document text

  • https://cdn-cms.f-static.net/uploads/4405929/normal_5f9345e520d4f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408323/normal_5f951f5e2d765.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405197/normal_5f93cec8466ac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381108/normal_5f915172927ce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385647/normal_5f934f4ce9303.pdfIn PDF document text
  • https://poxobavu.weebly.com/uploads/1/3/1/4/131453713/wepoza.pdfIn PDF document text
  • https://sirawomaperuli.weebly.com/uploads/1/3/1/3/131398091/nofaganunexur.pdfIn PDF document text
  • https://zegimobigew.weebly.com/uploads/1/3/4/3/134313375/jafit.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369923/normal_5f893bca58f09.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366316/normal_5f877298992d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366622/normal_5f874a798e938.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004e22.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004e22.bin)
  • https://s3.amazonaws.com/henghuili-files2/central_and_south_america_map.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/94386632939.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/8802352624.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a02ce13b-3d21-45eb-82fd-4b04c6e89271/1000122712.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8259b911-1751-4b8f-b822-eabdfea07e6e/puvovexolesaxoruwepak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7910d40b-7dd7-4b37-b745-68b01e4f5035/jenowafadodamoxo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c955f3a1-d5c5-4f8d-ade8-6a70fee8e69f/75260947712.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/99c31a74-e06b-4e11-b196-e7c66a8ff7fe/5080047802.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00004e22.bin)

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